mold design

1. Carry out feasibility analysis on the products of the designed mold. Take the computer case as an example, first use the design software to carry out assembly analysis on the product drawings of each component, i.e. the set drawings mentioned in our work, to ensure the correctness of the product drawings before the mold design. On the other hand, we can be familiar with the importance of each component in the whole case to determine the key dimensions, so as to design the mold It's very beneficial in the plan. The specific method of set diagram will not be introduced in detail here.

2. The work to be carried out after the product analysis, what kind of mold structure is used for the product analysis, and the product arrangement process is carried out to determine the stamping content of each process, and the product development is carried out by using the design software. In the product development, it is generally carried out from the follow-up project, for example, five processes are required for a product, and when the stamping is completed, it is carried out from the product drawing From the beginning to the fourth project, the third project, the second project and the first project, and after a drawing is developed, a copy is copied, and then the work of the previous project is carried out. That is to say, the product development of the fifth project is completed, and then the detailed work is carried out. Note that this step is very important, and at the same time, special care is required. If this step is completed well, a lot of time will be saved in drawing the mold drawing. For each project After the stamping content is determined, including in the forming die, the inner and outer lines of the product material thickness are reserved to determine the dimensions of the convex and concave die. The product development method will not be described here, but will be specifically introduced in the product development method.

3. Prepare materials according to the product development drawing. Determine the template size in the drawing, including all fixed plates, discharge plates, convex and concave dies, inserts, etc. pay attention to prepare materials directly in the product development drawing, which is very beneficial for drawing the mold drawing. I have seen many mold designers directly prepare materials by manual calculation on the product development drawing, which is too inefficient, Directly draw the specification and size of the template on the drawing, and express it in the form of assembly drawing. On the one hand, it can complete the preparation of materials, on the other hand, it can save a lot of work in the work of various parts of the mold, because in the work of drawing various components, it is only necessary to add positioning, pin, guide post, screw hole in the preparation drawing.

4. After the material preparation is completed, it can be fully entered into the drawing of the mold drawing. Make a copy of the material preparation drawing to draw the components, such as adding screw holes, guide post holes, positioning holes and other hole positions. In the punching die, the wire holes of various holes need to be cut by wire. In the forming die, the forming gap between the upper and lower dies must not be forgotten, so the mold of the product after these works are completed Almost 80% of the tool drawing has been completed. In addition, in the process of drawing the die drawing, attention should be paid to: each process, including making, such as bench marking, wire cutting and other different processing processes, has a complete production of layers, which is of great benefit to wire cutting and drawing management, such as color differentiation, dimension marking is also a very important work, but also the most troublesome one Work, because it's a waste of time.

5. After the completion of the above drawings, in fact, the drawings can not be issued. In addition, it is necessary to proofread the mold drawings, assemble all accessories, make different layers for each different mold plate, and analyze the mold assembly with the same benchmark, such as the guide pillar hole, and then insert the product development drawings of each process into the assembly drawing, so as to ensure that the holes of each template are the same and the upper and lower molds at the bending positions Clearance fit is correct.